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Old 05-03-2010, 08:15 AM
  #1    
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Default Battery Exploded HELP PLEASE

Hello All. New to the forum here.

I need some info please.

I have two 2-yr old continental marine batteries. I cranking and 1 deep cycle. I installed a bass pro XPS 10 amp 5/5 dual bank charger a month ago. Everything was working fine. It would charge and then go to float when the batteries were charges. Yesterday morning the wife and I heard an explosion in the garage. I was shocked to see that my deep cycle battery had exploded, sending the top of the battery and acid all over the garage.

I'd like to know what might have casued this? Did the charger overcharge the battery? Would like some insight please.

Thanks
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Old 05-03-2010, 11:32 AM
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Quote:
Originally Posted by Fyutga View Post
Hello All. New to the forum here.

I need some info please.

I have two 2-yr old continental marine batteries. I cranking and 1 deep cycle. I installed a bass pro XPS 10 amp 5/5 dual bank charger a month ago. Everything was working fine. It would charge and then go to float when the batteries were charges. Yesterday morning the wife and I heard an explosion in the garage. I was shocked to see that my deep cycle battery had exploded, sending the top of the battery and acid all over the garage.

I'd like to know what might have casued this? Did the charger overcharge the battery? Would like some insight please.

Thanks
You will do better to contact the manufacturer of the charger or Bass Pro. They may ask you to send the charger to them for inspection. If they find a defect, they will replace it and probably pay for the damage.
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Old 05-03-2010, 04:54 PM
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Likely fluid level or using tap water to top it off.

I believe you have moved to gels as a replacement - you should not mix your batteries so make sure all your batteries are gels.

If the XPS is a smart charger, make sure your charger is set correctly for charging gels vs wet. If the XPS is not a smart charger, replace it with one.

http://www.batterystuff.com/tutorial_battery.html#11

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Last edited by DwayneJ; 05-03-2010 at 05:05 PM.
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Old 05-04-2010, 12:35 PM
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Batteries produce a gas during the charging process which is normal. Thats why the lids have vents to allow the gas to escape. The gas builds up in an enclosed area such as where your battery probably is in your boat. Any spark such as from a loose wire some where could cause the battery to explode especially when the charger kicks on. Had many batteries explode while working on them.
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Old 05-04-2010, 07:02 PM
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Go AGM
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Old 05-06-2010, 06:42 AM
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Quote:
Originally Posted by Fyutga View Post

I need some info please.

...I heard an explosion in the garage. ...my deep cycle battery had exploded....

I'd like to know what might have casued this? Did the charger overcharge the battery? Would like some insight please.

Thanks
Looks like you have the common wet-cell type battery. Have you ever checked the electrolyte level within each cell in the previous two years you've had the batteries?

If not, it's certain that the explosion was caused by low electrolyte level.

The electrolyte is normally lost over time and repeated charging cycles through outgassing which occurs as part of the chemical reaction when the charging electrons flow through the electrolyte. As electrolyte levels in the cells drops, more space is created above the cells for the accumulation of the hydrogen gas created by the outgassing.

When electrolyte levels drop low enough to expose the plates that make up each cell the electrical charging current may arc across the plates since there is now not enough electrolyte to carry the current. In the presence of accumulated hydrogen - like in the Hindenberg - the arc will ignite the hydrogen and cause the explosion you experienced.

You must check electrolyte level and top off the "water" periodically to avoid this situation.

If you have been topping off, and are certain there was sufficient level of electrolyte in the battery prior to starting the charge, then it may be that the charger went haywire, overcharged the battery, and boiled off the electrolyte, leading to the above scenario. A quick and dirty check would be to connect the charger to a fully charged battery and measure its output voltage.

Good luck.
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Old 05-06-2010, 07:24 AM
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Bass Pro does not make their own chargers my guess is their chargers are made in China for them by a "US" Mfg. Chargers should not cause batteries to explode as they should shut down long before. Exploding batteries are very dangerous. I know of an experienced marine electician who was blinded in one eye with a exploding battery. Always were safety goggles when working with batteries. Bass Pro and the mfg should be notified of this explsion involving one of their chargers and the Boat US Safety council should be notified as well.
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